<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.14"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Magick++: BlobRef.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
  $(document).ready(initResizable);
/* @license-end */</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td id="projectalign" style="padding-left: 0.5em;">
   <div id="projectname">Magick++
   &#160;<span id="projectnumber">7.1.0</span>
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.14 -->
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
      <div id="nav-sync" class="sync"></div>
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(document).ready(function(){initNavTree('BlobRef_8cpp_source.html','');});
/* @license-end */
</script>
<div id="doc-content">
<div class="header">
  <div class="headertitle">
<div class="title">BlobRef.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<a href="BlobRef_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// This may look like C code, but it is really -*- C++ -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002, 2004</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// Copyright @ 2014 ImageMagick Studio LLC, a non-profit organization</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">// dedicated to making software imaging solutions freely available.</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">// Implementation of Blob</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00011"></a><span class="lineno"><a class="line" href="BlobRef_8cpp.html#a24d8db5449916b4dd0283f5f30a5edc7">   11</a></span>&#160;<span class="preprocessor">#define MAGICKCORE_IMPLEMENTATION  1</span></div><div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="BlobRef_8cpp.html#a99e08660df365803d576005502caf7e5">   12</a></span>&#160;<span class="preprocessor">#define MAGICK_PLUSPLUS_IMPLEMENTATION 1</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="Include_8h.html">Magick++/Include.h</a>&quot;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="BlobRef_8h.html">Magick++/BlobRef.h</a>&quot;</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="Exception_8h.html">Magick++/Exception.h</a>&quot;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="Thread_8h.html">Magick++/Thread.h</a>&quot;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;string.h&gt;</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#accf559dab9707f5f24370f2c482ad8b7">   21</a></span>&#160;<a class="code" href="classMagick_1_1BlobRef.html#accf559dab9707f5f24370f2c482ad8b7">Magick::BlobRef::BlobRef</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* data_,<span class="keyword">const</span> <span class="keywordtype">size_t</span> length_)</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;  : allocator(<a class="code" href="namespaceMagick.html">Magick</a>::<a class="code" href="classMagick_1_1Blob.html">Blob</a>::NewAllocator),</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;    length(length_),</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    data((void*) NULL),</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;    _mutexLock(),</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    _refCount(1)</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;{</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;  <span class="keywordflow">if</span> (data_ != (<span class="keyword">const</span> <span class="keywordtype">void</span>*) NULL)</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;    {</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;      <a class="code" href="classMagick_1_1BlobRef.html#a8a88091de11081529a2d8781734e42c1">data</a>=<span class="keyword">new</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>[length_];</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;      memcpy(<a class="code" href="classMagick_1_1BlobRef.html#a8a88091de11081529a2d8781734e42c1">data</a>,data_,length_);</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    }</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;}</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#a64bf18194f44105abfe97631fa16ab6e">   35</a></span>&#160;<a class="code" href="classMagick_1_1BlobRef.html#a64bf18194f44105abfe97631fa16ab6e">Magick::BlobRef::~BlobRef</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;{</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  <span class="keywordflow">if</span> (allocator == <a class="code" href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2ea8dfea41b347695cd3ee8cb88cc7123dd">Magick::Blob::NewAllocator</a>)</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    {</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;      <span class="keyword">delete</span>[] <span class="keyword">static_cast&lt;</span><span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(data);</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;      data=(<span class="keywordtype">void</span> *) NULL;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    }</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (allocator == <a class="code" href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2eadd73c6a4bf2388460e3df6141a24fe2a">Magick::Blob::MallocAllocator</a>)</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    data=(<span class="keywordtype">void</span> *) RelinquishMagickMemory(data);</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;}</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;</div><div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#a93856bd94eea1574f86ab98d0495715b">   46</a></span>&#160;<span class="keywordtype">size_t</span> <a class="code" href="classMagick_1_1BlobRef.html#a93856bd94eea1574f86ab98d0495715b">Magick::BlobRef::decrease</a>()</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;{</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    count;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;  _mutexLock.lock();</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  <span class="keywordflow">if</span> (_refCount == 0)</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;    {</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;      _mutexLock.unlock();</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;      <a class="code" href="namespaceMagick.html#acf038b43e710ea498bb5b9914e54ee3a">throwExceptionExplicit</a>(MagickCore::OptionError,</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <span class="stringliteral">&quot;Invalid call to decrease&quot;</span>);</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;      <span class="keywordflow">return</span>(0);</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    }</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;  count=--_refCount;</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;  _mutexLock.unlock();</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;  <span class="keywordflow">return</span>(count);</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;}</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#a183f4202805d204667ad601e93eeabaf">   64</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="classMagick_1_1BlobRef.html#a183f4202805d204667ad601e93eeabaf">Magick::BlobRef::increase</a>()</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;{</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;  _mutexLock.lock();</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;  _refCount++;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;  _mutexLock.unlock();</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;}</div><div class="ttc" id="BlobRef_8h_html"><div class="ttname"><a href="BlobRef_8h.html">BlobRef.h</a></div></div>
<div class="ttc" id="classMagick_1_1Blob_html_a320f999fa1ed7e9ee0e6f28858499e2eadd73c6a4bf2388460e3df6141a24fe2a"><div class="ttname"><a href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2eadd73c6a4bf2388460e3df6141a24fe2a">Magick::Blob::MallocAllocator</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00028">Blob.h:28</a></div></div>
<div class="ttc" id="classMagick_1_1BlobRef_html_accf559dab9707f5f24370f2c482ad8b7"><div class="ttname"><a href="classMagick_1_1BlobRef.html#accf559dab9707f5f24370f2c482ad8b7">Magick::BlobRef::BlobRef</a></div><div class="ttdeci">BlobRef(const void *data_, const size_t length_)</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00021">BlobRef.cpp:21</a></div></div>
<div class="ttc" id="classMagick_1_1BlobRef_html_a8a88091de11081529a2d8781734e42c1"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a8a88091de11081529a2d8781734e42c1">Magick::BlobRef::data</a></div><div class="ttdeci">void * data</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8h_source.html#l00041">BlobRef.h:41</a></div></div>
<div class="ttc" id="Thread_8h_html"><div class="ttname"><a href="Thread_8h.html">Thread.h</a></div></div>
<div class="ttc" id="classMagick_1_1Blob_html"><div class="ttname"><a href="classMagick_1_1Blob.html">Magick::Blob</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00022">Blob.h:22</a></div></div>
<div class="ttc" id="classMagick_1_1BlobRef_html_a183f4202805d204667ad601e93eeabaf"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a183f4202805d204667ad601e93eeabaf">Magick::BlobRef::increase</a></div><div class="ttdeci">void increase()</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00064">BlobRef.cpp:64</a></div></div>
<div class="ttc" id="namespaceMagick_html_acf038b43e710ea498bb5b9914e54ee3a"><div class="ttname"><a href="namespaceMagick.html#acf038b43e710ea498bb5b9914e54ee3a">Magick::throwExceptionExplicit</a></div><div class="ttdeci">MagickPPExport void throwExceptionExplicit(const MagickCore::ExceptionType severity_, const char *reason_, const char *description_=(char *) NULL)</div><div class="ttdef"><b>Definition:</b> <a href="Exception_8cpp_source.html#l00808">Exception.cpp:808</a></div></div>
<div class="ttc" id="classMagick_1_1BlobRef_html_a93856bd94eea1574f86ab98d0495715b"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a93856bd94eea1574f86ab98d0495715b">Magick::BlobRef::decrease</a></div><div class="ttdeci">size_t decrease()</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00046">BlobRef.cpp:46</a></div></div>
<div class="ttc" id="Include_8h_html"><div class="ttname"><a href="Include_8h.html">Include.h</a></div></div>
<div class="ttc" id="classMagick_1_1Blob_html_a320f999fa1ed7e9ee0e6f28858499e2ea8dfea41b347695cd3ee8cb88cc7123dd"><div class="ttname"><a href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2ea8dfea41b347695cd3ee8cb88cc7123dd">Magick::Blob::NewAllocator</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00029">Blob.h:29</a></div></div>
<div class="ttc" id="namespaceMagick_html"><div class="ttname"><a href="namespaceMagick.html">Magick</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00017">Blob.h:17</a></div></div>
<div class="ttc" id="Exception_8h_html"><div class="ttname"><a href="Exception_8h.html">Exception.h</a></div></div>
<div class="ttc" id="classMagick_1_1BlobRef_html_a64bf18194f44105abfe97631fa16ab6e"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a64bf18194f44105abfe97631fa16ab6e">Magick::BlobRef::~BlobRef</a></div><div class="ttdeci">~BlobRef(void)</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00035">BlobRef.cpp:35</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
  <ul>
    <li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_43e0a1f539e00dcfa1a6bc4d4fee4fc2.html">home</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_68918867e77b0a45f29c43673f2273f8.html">cristy</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_0664224c5e489c82e6416cddc46e1af0.html">ImageMagick-7</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_436bc20d1ebf054c4eca7a72174ce42e.html">Magick++</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_94b620f9ceea3d56d5ade00d9eab2203.html">lib</a></li><li class="navelem"><a class="el" href="BlobRef_8cpp.html">BlobRef.cpp</a></li>
    <li class="footer">Generated by
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.14 </li>
  </ul>
</div>
</body>
</html>
